He who sits still in a house all the time may be the greatest vagrant of all; but the saunterer, in the good sense, is no more vagrant than the meandering river, which is all the while sedulously seeking the shortest course to the sea.
始终静坐屋中的人,也许才是最大的游荡者;真正的漫步者却如蜿蜒的河流,始终勤勉地寻找通向大海的最短路径。
— Henry David Thoreau · Walking —